Matrix-forming machine.



S- G. GOSS'.

MATRIX FORMING MACHINE.

APPLICATION FILED DEO.16,1911.

Patented Nov. 11, 1913.

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Patented Nov. 11, 1913.

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S. G. GOSS.' MATRIX FORMING MACHINE.

APPLICATION FILED DEO.16, 1911.

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MATRIX FORMING MACHINE.

APPLICATION FILED DBG.16,1911. 1,078A29, Patented Nov. 11, 1913.

4 SHEETS-SHEET 3.

S. G. GOSS.

MATRIX FORMING MACHINE.

APPLICATION FILED DBO.16,1911.

. 1 97 499 Patented Nov. 11,1913.

4 SHEETS-SHEET 4.

STATES SA'MIIEL G. GOSS, OF GLENCOE, ILLINOIS,

ASSIGNOR TO THE GOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MATRIX-FORMING MACHINE.

Specification of Letters Patent.

Application filed December 16, 1911.

Patented Nov. 1 1, 1913.

Serial No. 666,177.

T 0 all whom it may concern.

Be it knownthat I, SAMUEL G. Gross, a citizen of the United States, residing at Glencoe, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Matrix- Forming Machines, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to matrix forming machines, and its object, generally stated, is to provide a new and improved matrix forming machine in which the blanket which is interposed between thecylinder and the type-bed may be carried by the machine and may be shifted as the machine operates.

Matrix forming machines, as generally used, are provided with a reciprocating frame which holds the chases carrying the type-beds, a cylinder which is rotated by 5 the reciprocating of the bed and adapted to press together the matrix, type, and ablanket as the same pass between the bed and the cylinder, and mechanism for reciprocating the bed. In such machines it is customary, when the chase is ut in, to lay upon the type the materia ,such as a moist paper-like structure,from which the matrix is formed, and to lay upon that a separate piece of blanketing material, and then, by reciprocating the bed, 7 ass the same back and forth under the cylinder, which, by pressing the blanket and matrix material between the type and the cylinder, makes an impression of the type in the matrix. When this is done the blanket and matrix are removed and the operation repeated either with the same or different forms of type, as the case may be. This having separate blankets is inconvenient and causes delay and waste of time in the operation of matrix forming, which generally requires to be done with all possible speed and despatch.

It is the object, therefore, of my invention to provide a new and improved mechanism in which the blanket may be carried by the mechanism itself and shifted back and forth properly as the type-bed passes beneath the cylinder.

It relates further to new and improved mechanism by which such a blanket carried on the machine itself as a part of its structure may be automatically shifted by the ;action of the machine, when desired, so as to expose anew blanket surface to the oper- E ation of the machine.

In the drawings,Figure 1 .is a side eleivation; Fig. 2 is an end elevation; Fig. 3 is a top or plan view of a portion of the ma- ;chine broken away; Fig. 4 is an enlarged 2 detail, being a view of the impression cylin- ;der and blanket cylinder carrying mechanisms; Fig. 5 is a modification, showing a Isecond method of mounting the blanket; Fig. 6 is an enlarged detail, being a view of .the ratchet-arm for engaging the slide-box fsupporting the blanket; and Fig. 7 is an enlarged detail, being an isometric view of 1 the slide-box.

Referring to the drawings,.-9 indicates a :frame.

I 10 indicates a traveling bed of the wellknown type to hold the forms of type and provided upon each side with racks 11. 12 iudicates a driving-shaft upon which are :mounted a tight pulley 13 and loose pulleys 1 1 and 15. These pulleys are operated in the well-known manner by belts (not shown) f,one of which is a straight belt and the other in crossed belt so as to be capable, "when ibrought into engagement with the tight puliley, of driving the shaft 12 in either direc gtion. 16-17 indicate belt-shifters, which yare operated by a reciprocating carriage 18 ,mounted in suitable guides and operated by la mutilated near 19, arm 20 rigidly connectled with said mutilated gear, and link 21, tall of which are well known in construction land form no art of my present invention. lThe mutilatec gear 19 meshes with a mutiilated gear 22 rlgidly secured to a-shaft 23 ymounted insuitable hearings, as 24, on the lframe of the machine. 2526 indicate teams rigidly secured on the shaft 23. 27 {indicates a cam secured to the traveling bed f1() and adapted, when brought into contact with the cams 25 and 26 near the end of the reciprocation of the bed in. either direction,

to rock the shaft 23 in one direction or the other. All these parts so far described are %well known in the art and form nopart of my present invention. v

28 indicates a worm, which is rigidly secured near one end of the shaft 12 and meshes with a worm-wheel 29 keyed, or otherwise rigidly secured, upon a shaft 30, which is journaled in suitable hearings in the framework of the machine above the reciprocating ty e-bed. When the shaft 12 is driven in one direction or the other by the pulley 13, the worm 28 will cause the worm-wheel 29 and with it the shaft 30 to rotate in one direction or the other, according to the direction in which the wheel 13 is rotated, and the direction in which the wheel 13 is rotated depends upon which of the two belts is brought into engagement with it by the action of the type-bed upon the cams, as above described. This operation is also well known in the art and forms no part of itself of my present invention.

31 indicates an impression cylinder, which is mounted upon the shaft 30, rotating therewith. The surface of the cylinder is preferably corrugated by intersecting line cuts, as is best shown in Fig. 2, giving the cylinder a surface somewhat similar to what it would have if covered with a wire net of medium sized mesh. 1 have found that these corrugations upon the cylinder produce a better and more perfect matrix when the matrix is pressed upon the type by the cylinder, as hereinafter described, than is formed when a smooth surfaced cylinder is used. The plastic material of which the matrix is formed is better pressed into the interstices between the type or depressions between the type and especially when the form contains cuts, such as electrotype cuts, in which the cut-out places vary somewhat in depth. 32 indicates gears.

secured upon the shaft 30 and meshing with the racks 11. This corrugation of the cylinder also prevents the slippage of the blanket as the cylinder rotates and the bed reciprocates, assisting in forming a clear impression in the matrix.

will be understood that when the shaft 12 is rotated in one direction or the other by the driving gear, the worm-wheel 29 will he correspondingly rotated in one direction or the other by the worm 23. carrying with it the shaft 30 and gears which will cause the bed carrying the type forms to reciprocate back and forth over the frame it under the cylinder 31. The framework 9 is provided with suitable sheaves, as 33, upon which the bed holding the type travels.

is best shown in Figs. 1 and 4, theshatt 30 is preferably mounted in a sliding block 34- mouuted between suitable guides 35 on each side of a standard 36 which forms a part of the frame of the machine and is adjustably held in position by screws "=7 which are rotatably mounted in the slide block at the lower end and screwed into screw-threaded horses on the top of the standards 36 at their upper end. This is for the purpose of adjusting the height of the cylinder so as to properly press the matrix between the type on the form bed and the blanket hereinafter described.

39 indicates the frames, which are pivotally mounted at their inner ends upon the standards 36 at each side. of the machine and upon each side of the standards. The frames 39' are provided with guides 40 which carry slide-blocks 41. These slideblocks are each provided with. a ratchet upon their lower edges for purposes hereinafter described.

4243 indicate shafts, which are journaled inthe slide-blocks 41.

44 indicates a blanket, which is wound upon drums 4546 carried by the shafts 4243, respectively. As is best shown in Fig. 4, the end of the blanket is secured to the'drums by tucking it into a suitable slot therein, and the blanket, which is of any suitable length, is wound upon the drums and stretches around and under the impression cylinder 31 so as to be interposed between it and the type when the reciprocating bed moves.

47 indicates springs, which are interposed between the ends of the slide-blocks 41 and the frames 39, and tend by their expansion to yieldingly force the slide-blocks inward toward the impression cylinder so as to keep the blankettaut against the cylinder, so that when the cylinder rotates in one direction or the other the drums will be rotated by the frictional contact of the cylinder with the blanket and the blanket wound off one drum and on to the other, according to the direction of rotation of the cylinder, which also varies, of course, with the direction of movement of the type-bed. Each of the frames 39 is provided with a lug 48 which projects upward therefrom, and which are connected by means of links 49 with arms 50--5l on a rock-shaft 52 which is journaled in suitable supports on the standards 36.

53 indicates a hand-lever secured to one end of the rock-shaft 52 so that the rock shaft may berocked by hand against the action of a spring 54 (see Fig. 3) which normally holds the rock-shaft yieldingly in the position shown in Fig. 1. That is to say, it tends to rock the rock-shaft in a clockwise direction in Fig. 4, rotating the arms 5051 ina clockwise direction, and thereby pulling the links 49 inward and rocking the frames 39 upward so as to hold the blanket on the drums 4546 in sufficiently close frictional contact with the surface of the impression cylinder 31. lVhen the lever 43, however, is rocked in a contra-clockwise directionthat is to say, from right to left the shaft 52 is rocked against the action of the spring, the links 49 are forced upward, thus rocking the frames 39 downward on their pivots, carrying the frames 4546 away fromthe cylinder, and thus bringing the blanket .out of frictional engagement with the impression cylinder 31.

55 indicates pawls, which are pivotally mounted at their inner ends upon each side of the standards 36 at each side of the machine, and whose outer end is adapted to engage with the ratchets 41 on the under surface of the slide-blocks 41. The pawls 55 are normally held upward in yielding contact with the ratchets 41 by means of suit able springs, as 56, which are only conventionally illustrated and may be of any other well-known'form and method of operation so that they may tend t0 normally hold the pawls in engagement with the ratchets. The

' ratchets are limited in their upward movement by any suitable stop, such as pin 57 on the frame, so that when the frames 39 are in their upper position, as shown in Fig. 1, thewpawls do not engage the ratchets on the slide-blocks. Inasmuch as the ratchets and the frames are eccentrically pivoted, as soon as the frames are moved downward by the operation of the hand-lever, as above de scribed, the blocks engage the ends of the pawls and the pawls are forced downward with the'frames, but at the same time the relative movement of the slide-blocks to the ends of the pawls will be outward, therefore causing the sliding of the ratchet teeth along the 'pawls in their outward movement but causing the pawls to engage with the teeth so as to hold the slide-blocks from slipping back inward again when the motion of the lever is arrested, This movement, it will be readily seen, causes the blocksrto move outward in-the frames 39 when the lever is rocked andholds them many desired position when the movement of the lever ceases and thus forces the shafts 42-43 and the drums away fromthe impression cylinder and holds them away as long asthe lever is held in the. position above described. This tends to still further freethe blanket from frictional contact with the cylinder for the purposes hereinafter described.

At one side of this machine the frame 89 carries a catch 58. 59 indicates an arm which is rigidly secured to the shaft 23 and projects upward therefrom, carrying at its end a spring-seated pin 60 which is adapted to engage the catch 58 when the parts are in the-position shown in Fig. 1 and the lever 53 is rocked tothe left. As the lever is rocked. to the left, the catch 58 passes the spring-seated pin 60, which yields backward, and as soon as the .catch is below the pin the pin springs outward and locks the parts in the position shown in Fig. 4:. As soon as the rock-shaft, however, is rotated by the cam 24 on the type-bed coming in contact with the cam 26, the pin 60 is disengaged from the catch 58, leaving the parts free to inove, wherpupon the" spring 54, rocking the I rock-shaft 52 in a clockwise direction, restores the arms 39 to their normal position,

as shown in Fig. 1, bringing the blanket taut against the cylinder and in frictional engagement therewith, as before.

It will be obvious from the above description that, supposing the type-bed to be at either end of the machine, if the lever 53 'is moved from right to left the frames are rocked, the drums moved away from the cylinder, and the blanket released from frictional contact therewith. The rotation of the cylinder, therefore, reciprocating the type-bed will not frict-ionally engage the blanket as it rotates and will not cause it to be Wound from one cylinder to the other. When the bed, therefore, reaches the end of its movement toward the left in Fig. 1 and thereby, operating the cams, frees the spring pin,60 from the catch 58 and the parts come into the position shown in Fig. 1, bringing the blanket again into frictional engagement with the cylinder, the rotation of the cylinder will again pull the blanket from one drum upon the other and thereby bring a fresh portion of the blanket between the matrix and the cylinder. Thus it will be seen a fresh portion of the blanket may be shifted into operative relation with the type bed, matrix and impression cylinder from time to time, as may be necessary.

In Fig. 5 I have shown a modification.

cylinder 31. 71 indicates a handle, which is journaled on the shaft 70 and which has a lever-arm 72 extending downward therefrom, carrying a catch '73 upon one end, and which is adapted to be engaged by a springseated pin 74 on arm 75 mounted on the shaft 25. When it is desired to loosen the blanket 63 so as to permit its shifting, the lever 71 is rocked to the left, carrying up the catch 73 which isv engaged by pin 7- holding the slide-boxes 67 inward against the action of the spring 68. This permits the impression cylinder to rotate without moving the blanket. When the type-bed rocks the shaft 25 by the cams above described, the catch 73 is freed from the pin 74, the spring 68 forces the slide-boxes (i7 outward in their guides, tightening the blanket against the impression cylinder so that the rotation of the cylinder will carry a fresh portion of the blanket on to the cylinder into operative relation with the typeand matrix. This device works in the same way as above described. That is to say, when the parts are in the position shown in Fig. 5 the blanket is moved back and forth around the cylinder 38 as it rotates and as the type-bed reciprocates. V'Vhen the spring-seated roller is moved inward by the action of the lever, as above described, the blanket is not moved by the rotation of the cylinder, and therefore when the latch is freed from the pin and the blanket is thereby tightened again against the cylinder, the rotation of the cylinder moves a new portion of the blanket into operative relation with the type-bed.

The operation of the machine will be understood from the above description but may be here recapitulated.

The blanketdrums being in the position shown in Fig. 1: and the type-bed at the lefthand end of the machine, which is the loading end, the chases containing the type forms are placed upon the bed, the matrix material placed upon the type-bed, and the machine set into operation. The bed thereupon reciprocates, carrying the type and the matrix between the blanket and the im pression cylinder, the blanket moving with the impression cylinder, and the matrix material is pressed down upon the type, taking the impression thereof in the usual manner. The machine may be stopped when the bed has passed once under the cylinder and the matrix removed, or it may pass back and forth more than once if desired or necessary. When the matrix is properly formed,

of frictional engagement with the cylinder as the type-bed moves to the left. When it reaches the end of its motion, the rocking of the shaft 23, as has been described above, releasing the catch on the s1ide-blocks from the pin causes the parts to be returned to their normal position. -When, therefore, a new matrix is placed upon the type-bed and the type-bed run under the cylinder, the r0 taticn of the cylinder pulls the new portion.

of the blanket into operative relation with the cylinder and the type-bed.

That which I claim as my invention, and desire to secure by Letters Patent, is

1. In a matrix-forming machine, the combination of a reciprocatable bed adapted to hold a chase oftype, a rotary impression cylinder adapted to co-act with said bed in pressing a matrix upon said type, a

.rotated by contact through said blanket with said cylinder, and a second drum about which the other end of said blanket is wound in the reverse direction adapted to be rotated by its contact through said blanket with said cylinder.

2. In a matrix-forming machine, the combination of a reciprocatable bed adapted to holdachase of type,arotary impression cylinder adapted to co act with said bed in pressing a matrix upon said type, a blanket passing partially around said impression cylinder, a drum about which one end of said blanket is wound, said drum with the blanket thereon being yieldingly pressed against said impression cylinder whereby it is rotated thereby, and a second drum about which the other end of said blanket is wound in the reverse direction, said second-named drum with the blanket thereon being also yieldingly pressed against said impression cylinder whereby it is rotated thereby.

3. In a matrix-forming machine, the combination of a reciprocatable bed adapted to hold a chase of type, a rotary impression cylinder adapted to co-act with said bed in pressing a matrix upon said type, blanketcarrying means frictionally operated from said impression cylinder adapted to reciprocate a portion of a blanket-back and forth with said bed, and means for disengaging the friction devices from the cylinder during a single movement of said'bed in one direction, whereby said blanket may be shifted f'la'tive to said bed so thata fresh portion of the blanket may be reciprocated in contact with the bed.

4. In a matrix-forming machine, the combination of a reciprocatable bed adapted to hold a chase of type a rotary impression cylinder adapted to co-act with said bed in pressing a matrix upon said type, blanketcarrying vmeans adapted to reciprocate a portion of a blanket back and forth with said bed, and means for rendering inoperative said blanket-reciprocating means during a single movement of said bed in one direction whereby upon the movement of the bed in the reverse direction a fresh pon tion of said blanket is moved into position for use.

5. In a matrix-forming machine, the combination of a reciprocatable bed adapted to hold a chase of type, a rotary impression cylinder adapted to co-a-ct with said bed in pressing a matrix upon said type, blanket carrying means adapted to reciprocate a portion of a blanket back and forth with said bed, a lever by a stroke of which in one direction said blanket-reciprocating ,means is thrown out of operation, a springtion, and means for automatically throwing off said catch upon the movement of said bed in one direction.

6. In a matrix-forming machine, the combination of a reciprocatable bed adapted to hold a chase of type, a rotary impression cylinder adapted to co-act with said bed in pressing a matrix upon said type, two spring-seated drums, a blanket passing partially around said impression cylinder and having its ends wound in opposite directions about said drums, means for normally holdin presse against the impression cylinder, whereby as said bed is reciprocated and said impression cylinder is rotated alternately in opposite directions said drums are rotated and said blanket is normally wound for a portion of its length alternately from one to the other of said drums, and means for withdrawing said drums temporarily from said impression cylinder during a movement of the bed in one direction whereby said blanket is left unchanged during said movement of the bed and whereby upon the next movement of the bed a fresh portion of said blanket is moved into position for use.

7 In a matrix-forming machine, the combination of a reciprocatable bed adapted to hold a chase of type, a rotary impression cylinder adapted to co-act with said bed in pressing a matrix upon said type, a blanket passing partially around said impression cylinder, a drum about which one end of said'blanket is wound adapted to be rotated by contact through said blanket with said cylinder, and a second drum about which the other end of said blanket is wound in the reverse direction adapted to be rotated by its contact through said blanket with said cylinder, said impression cylinder being corrugated upon its surface whereby the cylinder is better adapted to press the matrix into the type bed and whereby the blanket and matrix material are held against slipping relative to said cylinder and relative to the type.

8. In a matrix-forming machine, the combination of a reciprocatable bed adapted to hold a chaseof type, a rotary impresslon cylinder; adapted to co-act with said bed in pressm' a matrix upon. said type,aplurality of, rums, a blanket passing under said impression cylinder having its ends wound upon said drums, said drums beingactuated by said cylinder ,to wind a portion of the blanket alternatively from one to the other of said drums, and means for disengaging said drums from said cylinder permitting the cylinder to rotate without actuating the drums.

9, In a matrix-forming machine, in comder adapted to press a matrix between it and said drums with the blanket thereon bination, a reciprocating bed adapted to hold a chase of type, a rotary impression cylinder, adaptedto coact with said bed in pressing a matrix upon said type, drums located outside of said cylinder and adapted to hold a blanket in frictional engagement with said impression cylinder during its operative movement and to be rotated by the rotation of said impression cylinder to unwind the blanket from one drum and wind -it upon the other.

10. In a matrix-forming machine, in com bination, a reciprocating bed adapted to hold chases of type, a coacting impression cylinfor automatically restoring said blanket into frictional engagement with said impression cylinder.

11. In a matrix-forming machine, in combination, a reciprocating bed adapted to hold a chase of type, a coacting impression cylinder, blanketsupporting means normally adapted to hold the blanket carried thereby in constant frictional engagement with said impression cylinder during the operative movement of said machine, means operated by the rotation of said cylinder to cause said blanket to move on its supporting means with said cylinder during its operative move ment, means for temporarily freeing said blanket fromfrictional engagement with said cylinder, and means operated by the reciprocation of said bed to automatically re store said blanket into frictional engagement with said cylinder.

12. In a matrix-forming machine, in combination, a frame, a reciprocating bed adapted to hold a chase of type, a rotary impression cylinder adapted to coact with the type onsaid bed, brackets hinged to said frame upon each side of said impression cylinder, blanket drums rotatably mounted in said brackets and spring-seated therein, means connected to said brackets and. adaptedto normally hold them in position for a blanket carried by the said drums to be pressed in frictional engagementwith said impression cylinder, means for temporarily moving said brackets so as to hold said drums in position to remove said blanket from frictional engagement with said" cylinder, and means-noperatcd by the reciprocation of said type bed to automatically release said brackets and al- 1.25 low them to resume their normal position.

13. In a matrix-forming machine, in com bination, a frame, a reciprocating-bed adapted to hold a chase of type, a coacting rotary impression cylinder, swinging brackets pivoted to said frame upon each side of said impression cylinder, spring-seated slideblocks in said brackets, blanket-carrying drums journaled in said slide-blocks, mechanism adapted to normally hold said brackets in such position that said blankets will be held in frictional engagement with said cylinder, means for temporarily swinging said brackets to move said blankets out of engagement with said cylinder, pawls carried on said frame and adapted to engage said slide-blocks when temporarily swung to move the blankets out of frictional engagement with said cylinder and retain the same in position, and means operated by the reciprocation' of said bed to release said bra-ckets from their separated position and permitthem to resume normal position.

14. In a matrix-forming machine, incombination, a frame, a reciprocating bed adapted to hold a chase of type, a coacting rotary impression cylinder, swinging brackets-pivoted-to said frame upon each side of said impression cylinder, springsea-ted slideblocks in said brackets, blanketcarrying drums journaled in said slide-blocks, mechanism adapted to normally hold said brackets in such position that said blankets will be held in frictional engagement with said cylinder, means for temporarily swinging said brackets to move said blankets out of engagement with said cylinder, pawls carried on said frame and adapted to engage said slideblocks when temporarily swung to move the blankets out of frictional engagement-with said cylinder and retain the same in position, a stop adapted to engage one of said brackets and hold said brackets in open position, and means operated by the reciprocation of said bed to automatically throw said stop out of engagement with said brackets.

SAMUEL G. GOSS.

Witnesses: V 1

Gno. D. ALLABY, HUBERT LANG. 

